Interstage signalling system using discrete currents or voltages



D. F. RIGBY Dec. 16, 1969 INTERSTAGE SIGNALLING SYSTEM USING DISCRETECURRENTS OR VOLTAGES Filed July 28, 1966 .mgl

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LNTERSTAGE SIGNALLING SYSTEM usm@ DISCRETE CURRENTS 40R voLTAGEs FiledJuly 28, 1966 29 Sheets-Sheet 2 Q2 :E RQ m2 @m @Q E2 NN @E v3 Y o IN. oHM. o l o N. d w H w. m o m A N x Q m M: N:

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D. F. RIGBY INTERSTAGE SIGNALLING SYSTEM USING DIASCRETE CURRENTS ORVOLTAGES 29 Sheets-Sheet 5 Filed July 28, 1966 M u @m3 mm mgm m, .mi QLRQ pon/ALD /T- /EGBX |NVENTOR BY fv/Mrfy ATTORNEY D. F. RIGB'Y Dec. 16,1969 INTERSTAGE SIGNALLING SYSTEM USING DISCRETE CURRENTS OR VOLTAGES 29Sheets-sheet e Filed July 28, 1966 P f@ w N .QQ .3i

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INTERSTAGE SIGNALLING SYSTEM USING DISCRETE lCURRENTS OR VOLTAGES FiledJuly 28, 1966 29 Sheets-Sheet 7 FROM STORAGE CIRC U/ T ATTORNEY Dec. 16,196.9 D. F. RIGBY 3,484,559

INTERSTAGE SIGNALLING SYSTEM USING DISCRETE CURRENTS OR VOLTAGES FiledJuly 28, 1966 29 Sheets-Sheet 8 D04/4m FP/F/ INVENTOR ATTORNEY Dec. 16,1969 D. F. RIGBY INTERSTAGE SIGNALLING SYSTEM USING DISCRETE CURRENT-TSOR VOLTAGES Filed July 2s, 1966 29 Sheets-Shea?l 9 aA/ALE F/P/m/INVENTOR BY f ATTORNEY INTERSTAGE SIGNALLING SYSTEM USING DISCR'ETECURRENTS ORVOLTAGES Filed July 28, 1966 D. F. RIGBY Dec. 16, 1969 29Sheets-Sheet lo INVENTOR BY Zan/47a ATTORNEY D. F. RIGBY 3,484,559

INTERSTAGE SIGNALLING SYSTEM USING DISCRETE CURRENTS OR VOLTAGES Dec.16, 1969 29 Sheets-Sheet 1l Filed July 28, 1966 .2. mi .mv @E Q .mi

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INTERSTAGE SIGNALLING SYSTEM USING DISCRETE CURRENTS OR VOLTAGES Dec.16, 1969 29 Sheets-Sheet 12 Filed July 28, 1966 El l @Si mmm INVENTOR BYf( #WL/ym ATTORNEY D. F. RIGBY Dec. 16, 1969 29 Sheets-Sheet 15 F'ledJuly 28, 1966 m mm1/@W @S l h KQ m@ Q mwm m. SNN I A EQ L @mmm @mmf P11QE EPT m lml Tx v5@ Ram ,l N v l @E @E F N @am i Q2 NQS Rmx. &w\ lm.H\\x @am l 52 p @mmm vom n@ @5 @E E a NRE w\ Wwf. Wwf N+ mmm Q2) 6 .e m.I @S H\\lk @m5 h wl ml am i M42/i @a N :a @BE Q 2 @Si mm ARMQ 5 Vix/swg:mm

INVENT'OR ATTORNEY D. F. RIGBY Dec. 16, 1969 INTERSTAGE SIGNALLINGSYSTEM USING DISCRETE CURREYNTS OR VO'LTAGES 29 SheeCS-Sheet 14 FiledJuly 2S, 1966 EN Q INVENTOR BY QW/@4b ATTORNEY Dec. 1'6, 196.9

D. F. RIGBY INTERSTAGE SIGNALLING SYSTEM USING DISCRETE CURRENTS ORVOLTA-GES Filed July 28, 1966 F 7G74. L 7720 T FIG. 32.

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D. F. RIGBY Dec. 16, 1969 29 Sheets-Sheet 1'? Filed July 2.8, 1966 T m@Q w m A@ Q\ @Q Q Qm| m N 7 w f P. m imm @QQ w /w/ @QQ E DM, v v rim. Q vVI m@ Q Q 5G B Q l -m/ 1||.||f.|l|il, m @En l K5@ mmw/ mwfmm v E @Qdi Q@Q u lll V lll l IIL m. wm a @I m@ Q @A Q m@ p @En wm; p LQ @E mm QWI 5EQQ mr 'r1 Q2 E @I ww: n@ Q @Y www m@ Q Q@ Q ATTORNEY Dec.A 16, 19693,484,559

INTERSTAGE SGNALLING SYSTEM USING DISCRETE CURRENTS OR VOLTAGES D.RRI-GBY 29 Sheets-Sheet 18 Filed July 28, 1966 @Q3 EGE @QQ Qml Emma E2Sw |NVENTOR ATTORNEY D. F. RIGBY Dec. 16, 1969 Filed July 2S, 1966 29Sheets-Sheet 19 @2 wm @E NGE @Nui ENQ EGE m, @WQ mQ RQ @2 @w3 f E E/ E@NGE SQNQ S E f D www www Rm EN mmm u Q Q Q Q Q M mmm Q o www x NN ,l m@Qwmm.; I RNQ www l. Q2 mi Q mwmQ mmzmm QQ Q www@ ENQ W Tl A@ Q Q mmg ma@@NNQ .MN @E @MNQ NVENTOR BY QM ZM@ ATTORNEY D. F. RIGBY Dec. 16, 1969INTERSTAGE SIGNALLING SYSTEM USING DISCRETE CURRENTS OR VOLTAGES FiledJuly 28, 1966 29 Sheets-Sheet 2'0 W/ M f mmm MN um H y@ E3 S @mmm mm @iR2 E w w h @mm Q3 w H m. u mmmg mmm mm ,QMNQF EN@ A wm. WMA ma 9 mm2mW/SRW .mm2 S 4%. NR @mmm m3 Smw B3 S l. l h ,www vl h 3&2 @m @Rm Mmmm@www@ r mm @Q um@ QNNQ INVENTOR ATTORNEY

